you must have xCode IDE installed already on your mac OS X or you can download it from HERE open the Project in your xCode Iam using Swift 3
to Make Same App
Additional information and Resourses
about this APP
this app is Called PitchPerfect and it is used for Recording your Voice and play it back with different effective Sounds.
I will be appriciated if you try it
you can Choose from these effects blew :